Questions:
Which lever class has the fulcrum between the effort and resistance? First Class Lever
Which lever class has the effort between the fulcrum and resistance? Third Class Lever
Would a hammer pulling a nail be in the same class as a hammer pounding a nail? Explain your answer. No, because the positions of the fulcrum, effort force and resistance force will change.
Give an example of a lever other than the ones already so designated in this investigation that would be in different classes, depending on its use.
First Class Lever: Crowbar
Second Class Lever: Wheelbarrow Third Class Lever: Broom
True or False: A lever that provides an easier effort force cannot, at the same time, also shorten your distance. True
True or False: A lever that provides an easier effort force cannot, at the same time, also change direction. True
True or False: A lever that shortens your distance can also change direction. False
For the levers which you found provided an easier effort force, was the fulcrum closer to the effort or to the resistance, or were the distances equal? Fulcrum closer to the resistance
For the levers which you found shortened your distance, was the fulcrum closer to the effort or to the resistance, or were the distances equal? Closer to the resistance force
What is the relationship between lever class and mechanical advantage Mechanical advantage is used in assessing the performance of a machine. Levers can give you a mechanical advantage. Simple machines give you mechanical advantage.
Which lever class has the fulcrum between the effort and resistance?
First Class Lever
Which lever class has the effort between the fulcrum and resistance?
Third Class Lever
Would a hammer pulling a nail be in the same class as a hammer pounding a nail? Explain your answer.
No, because the positions of the fulcrum, effort force and resistance force will change.
Give an example of a lever other than the ones already so designated in this investigation that would be in different classes, depending on its use.
First Class Lever: Crowbar
Second Class Lever: Wheelbarrow
Third Class Lever: Broom
True or False: A lever that provides an easier effort force cannot, at the same time, also shorten your distance.
True
True or False: A lever that provides an easier effort force cannot, at the same time, also change direction.
True
True or False: A lever that shortens your distance can also change direction.
False
For the levers which you found provided an easier effort force, was the fulcrum closer to the effort or to the resistance, or were the distances equal?
Fulcrum closer to the resistance
For the levers which you found shortened your distance, was the fulcrum closer to the effort or to the resistance, or were the distances equal?
Closer to the resistance force
What is the relationship between lever class and mechanical advantage
Mechanical advantage is used in assessing the performance of a machine. Levers can give you a mechanical advantage. Simple machines give you mechanical advantage.